FWIW, I am having almost the same problems.  The NAND driver that I was using 
on the 2.6.16 kernel is totally useless on a >= 2.6.19 kernel.  I am using a 
ixp425 processor with a GPIO/EXT bus interface to the NAND part.

-=ChuckT=-

On Friday 02 February 2007 11:42 am, Christopher Friedt wrote:
> Hi everyone,
>
> I'm trying my damnedest to build yaffs2 for the 2.6.19 kernel. However
> it seems that between 17 and 19 a _lot_ has changed w/ mtd and nand
> structs.
>
> Even the inode struct has changed a bit (the union containing i_bdev,
> i_pipe, i_cdev is no longer named 'u'), which seems to affect
> everything. That's kindof interesting, because I remember reading an
> interview w/ the guy from Denmark working on the block layer ;-)
> apparently a lot actually _is_ going on!!
>
> Anyway, i just got sidetracked there, sorry.
>
> Has anyone else had any luck building yaffs2 with recent kernel releases
>
>  >= 2.6.19 ?
>
> Is there a chance that yaffs / mtd is compatible might be fixed in the
> latest from cvs ?
>
> Cheers,
>
> ~/Chris
>
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